CN218371281U - Power battery's hoist and mount fastener and rail vehicle - Google Patents
Power battery's hoist and mount fastener and rail vehicle Download PDFInfo
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- CN218371281U CN218371281U CN202221891540.XU CN202221891540U CN218371281U CN 218371281 U CN218371281 U CN 218371281U CN 202221891540 U CN202221891540 U CN 202221891540U CN 218371281 U CN218371281 U CN 218371281U
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- hoisting
- power battery
- locking bolt
- underframe
- fastening
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Abstract
The utility model relates to a rail vehicle technical field especially relates to a power battery's hoist and mount fastener and rail vehicle. The hoisting fastening device comprises a base plate and a plurality of fastening assemblies, the base plate is used for being arranged on the upper surface of the underframe of the railway vehicle or the lower surface of the hoisting member of the power battery in a cushioning mode, and the lower surface of the underframe of the railway vehicle is in contact with the upper surface of the hoisting member of the power battery; the plurality of fastening components are respectively used for fastening the base plate, the bottom frame and the hoisting component into a whole. The utility model discloses simple structure can hoist power battery on rail vehicle's chassis conveniently, has ensured the reliability to power battery hoist and mount fastening to be convenient for maintain.
Description
Technical Field
The utility model relates to a rail vehicle technical field especially relates to a power battery's hoist and mount fastener and rail vehicle.
Background
In the related art, a power battery is hoisted on an underframe of a railway vehicle, and the power battery provides a power source for emergency traction of the railway vehicle. Because the power battery has larger weight, the maximum weight of the power battery can reach 3000kg, and higher requirements are provided for the structural strength of a connecting area of the power battery and the underframe.
However, in practical applications, the power battery is usually fastened directly by using standard parts, and this fastening manner is prone to cause stress concentration, which is worse as the weight of the equipment increases, and it is difficult to ensure the reliability of hoisting and fastening the power battery.
SUMMERY OF THE UTILITY MODEL
The utility model provides a power battery's hoist and mount fastener and rail vehicle for solve and be difficult to ensure the problem to the reliability of power battery hoist and mount fastening at present.
The utility model provides a power battery's hoist and mount fastener, include: the backing plate and the plurality of fastening components; the base plate is used for being arranged on the upper surface of the underframe of the railway vehicle or the lower surface of the hoisting component of the power battery in a cushioning mode, and the lower surface of the underframe of the railway vehicle is in contact with the upper surface of the hoisting component of the power battery; the fastening assemblies are respectively used for fastening the base plate, the bottom frame and the hoisting member into a whole.
According to the utility model provides a power battery's hoist and mount fastener, the chassis includes the boundary beam, the boundary beam extends along the length direction of rail vehicle; the base plate pad is arranged on the upper surface of the edge beam and extends along the extension direction of the edge beam; the fastening assemblies are sequentially arranged at intervals along the extending direction of the backing plate.
According to the utility model provides a pair of power battery's hoist and mount fastener, the boundary beam is the trough-like, the backing plate orientation the side of boundary beam with the tank bottom contact of boundary beam, and with the shape adaptation of the tank bottom of boundary beam.
According to the utility model provides a power battery hoisting fastening device, the fastening assembly comprises a locking bolt and a locking nut; the screw rod of the locking bolt is in threaded connection with the locking nut; the screw rod of the locking bolt penetrates through the base plate, the bottom frame and the hoisting component, and the base plate, the bottom frame and the hoisting component are fastened between the screw head of the locking bolt and the locking nut.
According to the utility model provides a power battery hoisting fastening device, the upper surface of the backing plate is provided with a positioning groove; a first through hole is formed at the bottom of the positioning groove; the positioning groove is matched with the screw head of the locking bolt or the locking nut so as to prevent the locking bolt or the locking nut from rotating relative to the base plate; the first through hole is used for a screw rod of the locking bolt to pass through.
According to the hoisting fastening device for the power battery, provided by the utility model, the positioning groove extends along the length direction of the rail vehicle; the first through-hole is equipped with a plurality ofly, and is a plurality of first through-hole is followed the extending direction of constant head tank is interval in proper order arranges.
According to the utility model provides a pair of power battery's hoist and mount fastener still includes: a bushing; the bushing is sleeved on a screw rod of a locking bolt corresponding to one part of the fastening components; one end of the lining is abutted to one side face, deviating from the bottom frame, of the hoisting component, the other end of the lining is abutted to the screw head of the locking bolt or the locking nut, or one end of the lining is abutted to one side face, deviating from the bottom frame, of the base plate, and the other end of the lining is abutted to the screw head of the locking bolt or the locking nut.
According to the utility model provides a power battery hoisting fastening device, the hoisting member comprises a hoisting beam and a liner; one side surface of the hoisting beam is in contact with the lower surface of the underframe, and the other side surface of the hoisting beam is connected with the liner; the locking bolt comprises a first locking bolt, the locking nut comprises a first locking nut, and the first locking bolt is in threaded connection with the first locking nut; the screw rod of the first locking bolt penetrates through the base plate, the underframe, the hoisting beam and the gasket, and the base plate, the underframe, the hoisting beam and the gasket are fastened between the screw head of the first locking bolt and the first locking nut.
According to the utility model provides a power battery hoisting fastening device, the hoisting member comprises a hoisting beam and a liner; one side surface of the hoisting beam is in contact with the lower surface of the underframe, the liner is connected with the hoisting beam, a first side surface of one part of the liner is in contact with the lower surface of the underframe, and a second side surface of one part of the liner is in contact with one end of the bush; the locking bolt comprises a second locking bolt, the locking nut comprises a second locking nut, and the second locking bolt is in threaded connection with the second locking nut; the screw rod of the second locking bolt penetrates through the base plate, the bottom frame, the gasket and the lining, and the base plate, the bottom frame, the gasket and the lining are fastened between the screw head of the second locking bolt and the second locking nut.
The utility model also provides a rail vehicle, include: the power battery lifting and fastening device comprises a chassis, a power battery and the power battery lifting and fastening device; the underframe is connected with a hoisting member on the power battery through a hoisting fastening device of the power battery.
The utility model provides a pair of power battery's hoist and mount fastener and rail vehicle, when hoist power battery, can be based on backing plate and a plurality of fastening components, with rail vehicle's chassis and power battery's hoist and mount component fastening as an organic whole, when the realization hoists power battery, fastening area's stress has effectively been reduced, the increase that leads to whole car weight through the thickening chassis has been avoided, and transmit fastening force to the chassis through the backing plate based on a plurality of fastening components, the stress that leads to the small area contact is concentrated the transfer to on the backing plate, can not directly damage rail vehicle's chassis, maintainability has been improved.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for the embodiments or the prior art descriptions, and obviously, the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a hoisting fastening device for a power battery provided by the present invention;
fig. 2 is one of the schematic structural diagrams of the backing plate provided by the present invention;
fig. 3 is a second schematic structural view of the backing plate provided by the present invention;
fig. 4 isbase:Sub>A schematic structural diagram ofbase:Sub>A-base:Sub>A section in fig. 3 according to the present invention;
fig. 5 is a schematic top view of a bushing according to the present invention;
fig. 6 is a schematic structural view of a section B-B in fig. 5 according to the present invention;
fig. 7 is a schematic view of a bottom structure of the power battery provided by the present invention being hoisted on the lower side of the bottom frame;
fig. 8 is a schematic view of the power battery hoisted at the lower side of the bottom frame.
Reference numerals:
100: hoisting a fastening device; 200: a chassis; 300: a power battery; 11: a base plate; 111: positioning a groove; 112: a first through hole; 121: a first locking bolt; 122: a first lock nut; 123: a gasket; 131: a second locking bolt; 132: a second lock nut; 133: a bushing; 21: a boundary beam; 31: hoisting the component; 311: hoisting the beam; 312: a liner.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, the drawings in the present invention will be combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The following describes a hoisting fastening device for a power battery and a rail vehicle according to the present invention with reference to fig. 1 to 8.
As shown in fig. 1, the present embodiment provides a hoisting fastening device for a power battery, where the hoisting fastening device 100 includes: a backing plate 11 and a plurality of fastening components; the backing plate 11 is arranged on the upper surface of the underframe 200 of the railway vehicle in a cushioning manner, or the backing plate 11 is arranged on the lower surface of the hoisting member 31 of the power battery 300 in a cushioning manner, and the lower surface of the underframe 200 of the railway vehicle is in contact with the upper surface of the hoisting member 31 of the power battery 300; the fastening members are used to fasten the backing plate 11, the base frame 200, and the lifting member 31 together.
Specifically, this embodiment can be based on backing plate 11 and a plurality of fastening components when hoisting power battery 300, with rail vehicle's chassis 200 and power battery 300's hoist and mount component 31 fastening as an organic whole, when realizing hoist and mount to power battery 300, fastening regional stress has effectively been reduced, avoided leading to whole car weight's increase through thickening chassis 200, and transmit fastening force to chassis 200 through backing plate 11 based on a plurality of fastening components, the stress that leads to the small area contact is concentrated on having transferred to backing plate 11, can not directly damage rail vehicle's chassis 200, maintainability has been improved.
It should be noted that the fastening assembly shown in the present embodiment may be a bolt locking assembly, a locking clamp, a binding assembly, etc. known in the art, and is not particularly limited herein as long as it is convenient to fasten the backing plate 11, the bottom frame 200 and the lifting member 31 into a whole.
In some examples, since the underframe 200 is usually fixed to the lower side of the car body of the railway vehicle, in order to facilitate the installation and removal of the power battery 300, the present embodiment preferably pads the pad plate 11 on the upper surface of the underframe 200 of the railway vehicle, so that the pad plate 11, the underframe 200 and the hoisting member 31 are arranged from top to bottom.
Here, the embodiment adopts a plurality of fastening assemblies to fasten the base plate 11, the bottom frame 200 and the hoisting member 31 arranged from top to bottom, which can ensure convenience of fastening operation and reliability of fastening, and can also ensure uniformity of stress of the base plate 11 to a certain extent, thereby preventing the problem of stress concentration.
As shown in fig. 7 and 8, the hoisting member 31 shown in this embodiment is connected with the battery main body of the power battery 300 as a whole, the hoisting member 31 is disposed on both the first side and the second side of the power battery 300, and the first side and the second side of the power battery 300 are opposite to each other.
Correspondingly, the underframe 200 is arranged on both the first side and the second side of the rail vehicle, the underframe 200 on the first side of the rail vehicle is connected with the hoisting member 31 on the first side of the power battery 300 through the hoisting fastening device 100 for the power battery shown in the embodiment, and the underframe 200 on the second side of the rail vehicle is connected with the hoisting member 31 on the second side of the power battery 300 through the hoisting fastening device 100 for the power battery shown in the embodiment, so that the power battery 300 is hoisted.
In some examples, to achieve an optimal arrangement of multiple fastening assemblies based on the configuration of the undercarriage, the undercarriage 200 shown in this embodiment includes a side rail 21, the side rail 21 extending along the length of the rail vehicle; the backing plate 11 is arranged on the upper surface of the edge beam 21 and extends along the extending direction of the edge beam 21; the plurality of fastening assemblies are arranged at intervals in sequence along the extending direction of the backing plate 11.
In practical applications, the side frame 21 shown in this embodiment is usually made of i-steel, so that the side frame 21 is channel-shaped, the notch of the side frame 21 is arranged upward, and the side of the backing plate 11 facing the side frame 21 is in contact with the bottom of the side frame 21 and is matched with the shape of the bottom of the side frame 21.
As shown in fig. 2 to 4, the side of the tie plate 11 facing the side of the side sill 21 in the present embodiment is provided with a slope adapted to the groove bottom of the side sill 21, and the edge of the side of the tie plate 11 facing the side of the side sill 21 is configured with a chamfered structure, so as to ensure that the tie plate 11 is adapted to the groove bottom of the side sill 21 and also ensure a sufficient contact area.
Here, the present embodiment is based on the improvement of the arrangement of the mounting positions of the tie plates 11 and the structure of the tie plates 11, and can ensure the reliability of the placement of the tie plates 11 in the side sill 21, and the placement position of the tie plates 11 is not displaced with the movement of the railway vehicle.
As shown in fig. 1, in order to ensure the reliability of fastening the backing plate 11, the bottom frame 200 and the lifting member 31, the fastening assembly shown in this embodiment includes a locking bolt and a locking nut; the screw rod of the locking bolt is in threaded connection with the locking nut; the screw of the locking bolt penetrates through the backing plate 11, the underframe 200 and the hoisting member 31, and the backing plate 11, the underframe 200 and the hoisting member 31 are fastened between the screw head of the locking bolt and the locking nut.
Because the lock nut is not easily fixed on the bottom chassis 200 due to the problem of installation space, the positioning groove 111 is provided on the upper surface of the backing plate 11 in this embodiment; a first through hole 112 is formed at the bottom of the positioning groove 111; the positioning groove 111 is adapted to a screw head of the locking bolt or the locking nut to prevent the locking bolt or the locking nut from rotating relative to the pad 11; the first through hole 112 is for a screw of a locking bolt to pass through.
So, in actual installation, this embodiment can be earlier with lock bolt's screw rod from up passing hoist and mount component 31, chassis 200 and backing plate 11 in proper order down, after installing lock nut in lock bolt's the tip of screw rod, imbed lock nut to constant head tank 111 in, then applys the moment of torsion to lock bolt's spiral shell head to it is as an organic whole to fasten backing plate 11, chassis 200 and hoist and mount component 31 conveniently.
Of course, in this embodiment, the screw of the locking bolt may pass through the base plate 11, the bottom frame 200, and the hoisting member 31 from top to bottom in sequence, after the locking nut is installed at the end of the screw of the locking bolt, the head of the locking bolt is inserted into the positioning groove 111, and then the torque is applied to the locking nut, so as to fasten the base plate 11, the bottom frame 200, and the hoisting member 31 together.
As shown in fig. 2 to 4, in the case that the bottom frame 200 is the edge beam 21, the positioning groove 111 shown in the present embodiment extends in the longitudinal direction of the edge beam 21; the first through holes 112 are provided in plural, and the plural first through holes 112 are sequentially arranged at intervals along the extending direction of the positioning groove 111.
Here, according to the size of the locking bolt head or the locking nut, a square positioning groove 111 with a proper width and depth is milled on one side of the backing plate 11 facing the edge beam 21, and the positioning groove 111 plays a role of fixing a wrench in the process of locking the fastening assembly.
Based on the solution shown in the above embodiments, as shown in fig. 1, 5 and 6, the hoisting fastening device 100 shown in this embodiment is further provided with a bushing 133; the bushing 133 is sleeved on a screw of a locking bolt corresponding to a portion of the fastening members.
Wherein, one end of the bushing 133 abuts against a side surface of the hoisting member 31 deviating from the base frame 200, and the other end abuts against a screw head or a lock nut of the lock bolt, or one end of the bushing 133 abuts against a side surface of the backing plate 11 deviating from the base frame 200, and the other end abuts against a screw head or a lock nut of the lock bolt.
Here, the present embodiment can optimize the diameter and length of the bushing 133 based on actual requirements, and the bushing 133 functions as both a general spacer for adjusting the contact area of the fastening assembly when fastening and for adjusting the clamping length of the fastening assembly.
Wherein, to the locking bolt of the high strength of heavily loaded, the clamping length of locking bolt often suits at 3 to 5 times than the ratio of diameter to this embodiment is based on the design of bush 133, make full use of the fastening performance of locking bolt, also can ensure fastening assembly's holistic structural strength to a certain extent.
In some examples, as shown in fig. 1, the hoisting member 31 shown in the present embodiment includes a hoisting beam 311 and a pad 312; one side surface of the hoisting beam 311 is in contact with the lower surface of the underframe 200, and the other side surface of the hoisting beam 311 is connected with the pad 312; the locking bolt comprises a first locking bolt 121, the locking nut comprises a first locking nut 122, and the first locking bolt 121 is in threaded connection with the first locking nut 122; the screw of the first locking bolt 121 penetrates the backing plate 11, the underframe 200, the hoisting beam 311 and the gasket 312, and the backing plate 11, the underframe 200, the hoisting beam 311 and the gasket 312 are fastened between the screw head of the first locking bolt 121 and the first locking nut 122.
Here, since the overall thickness of the pad plate 11, the base frame 200, the lifting beam 311, and the packing 312 is close to the length of the screw of the first locking bolt 121, even in the case where no bush is fitted over the screw of the first locking bolt 121, the clamping length of the first locking bolt 121 can be secured, and the boundary beam 21 and the lifting beam 311 can be reliably fastened together.
In addition, in this embodiment, a gasket 123 may be inserted between the gasket 312 and the screw head of the first locking bolt 121, so as to further ensure the reliability of fastening the side beam 21 and the hoisting beam 311. The model of the first locking bolt 121 is ISO4017, the model of the first locking nut 122 is ISO7040, and the model of the gasket 123 is ISO7093-1.
In some examples, as shown in fig. 1, the hoisting member 31 shown in the present embodiment includes a hoisting beam 311 and a pad 312; one side surface of the lifting beam 311 is in contact with the lower surface of the bottom chassis 200, the pad 312 is connected to the lifting beam 311, a first side surface of a portion of the pad 312 is in contact with the lower surface of the bottom chassis 200, and a second side surface of a portion of the pad 312 is in contact with one end of the bushing 133; the locking bolt includes a second locking bolt 131, the locking nut includes a second locking nut 132, the second locking bolt 131 is threadedly coupled with the second locking nut 132,
here, since the overall thickness of the backing plate 11, the base frame 200, and the packing 312 is much smaller than the length of the screw of the second locking bolt 131, in order to secure the clamping length of the second locking bolt 131, the bushing 133 is fitted over the screw of the second locking bolt 131 in this embodiment.
As shown in fig. 1, the screw of the second lock bolt 131 penetrates the pad 11, the base frame 200, the spacer 312 and the bushing 133, and the pad 11, the base frame 200, the spacer 312 and the bushing 133 are fastened between the head of the second lock bolt 131 and the second lock nut 132. The model of the second locking bolt 131 is ISO4017.
As shown in fig. 7 and 8, the present embodiment further provides a rail vehicle, including: the power battery hoisting and fastening device 100 comprises a base frame 200, a power battery 300 and the power battery hoisting and fastening device 100; the underframe 200 is connected with the hoisting member 31 on the power battery 300 through the hoisting fastening device 100 of the power battery.
It should be noted here that, since the plurality of lifting members 31 are provided on the power battery 300, in order to ensure the reliability of fastening the power battery 300, the lifting fastening device 100 for the power battery shown in the present embodiment is installed at each position of the lifting member 31 and the underframe 200.
In addition, it should be noted that, in order to realize the hoisting of the power battery 300, the underframe 200 of the rail vehicle or a small cross beam close to the underframe 200 may also be welded to one end of an L-shaped bracket, and the power battery 300 shown in this embodiment may be placed on the L-shaped bracket.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A hoist and mount fastener of power battery, its characterized in that includes:
the backing plate is used for being arranged on the upper surface of an underframe of the railway vehicle or the lower surface of a hoisting component of the power battery in a cushioning mode, and the lower surface of the underframe of the railway vehicle is in contact with the upper surface of the hoisting component of the power battery;
and the fastening assemblies are respectively used for fastening the base plate, the underframe and the hoisting member into a whole.
2. The hoisting fastening device for the power battery as claimed in claim 1, wherein the underframe comprises an edge beam extending along the length direction of the railway vehicle; the base plate pad is arranged on the upper surface of the edge beam and extends along the extension direction of the edge beam; the fastening assemblies are sequentially arranged at intervals along the extending direction of the backing plate.
3. The power battery hoisting and fastening device as claimed in claim 2, wherein the edge beam is trough-shaped, and the side of the base plate facing the edge beam is in contact with the bottom of the edge beam and is matched with the bottom of the edge beam in shape.
4. The hoisting fastening device for the power battery as claimed in any one of claims 1 to 3, wherein the fastening assembly comprises a locking bolt and a locking nut; the screw rod of the locking bolt is in threaded connection with the locking nut; the screw rod of the locking bolt penetrates through the base plate, the bottom frame and the hoisting component, and the base plate, the bottom frame and the hoisting component are fastened between the screw head of the locking bolt and the locking nut.
5. The hoisting fastening device for the power battery as claimed in claim 4, wherein the upper surface of the backing plate is provided with a positioning groove; a first through hole is formed at the bottom of the positioning groove; the positioning groove is matched with the screw head of the locking bolt or the locking nut so as to prevent the locking bolt or the locking nut from rotating relative to the base plate; the first through hole is used for a screw rod of the locking bolt to pass through.
6. The hoisting fastening device for the power battery as claimed in claim 5, wherein the positioning groove extends along the length direction of the rail vehicle; the first through-hole is equipped with a plurality ofly, and is a plurality of first through-hole is followed the extending direction of constant head tank is interval arrangement in proper order.
7. The hoisting fastening device for the power battery as claimed in claim 4, further comprising: a bushing; the bushing is sleeved on a screw rod of a locking bolt corresponding to one part of the fastening components;
one end of the lining is abutted to one side face, deviating from the bottom frame, of the hoisting component, the other end of the lining is abutted to the screw head of the locking bolt or the locking nut, or one end of the lining is abutted to one side face, deviating from the bottom frame, of the base plate, and the other end of the lining is abutted to the screw head of the locking bolt or the locking nut.
8. The hoisting fastening device for the power battery as claimed in claim 7, wherein the hoisting member comprises a hoisting beam and a liner; one side surface of the hoisting beam is in contact with the lower surface of the underframe, and the other side surface of the hoisting beam is connected with the liner;
the locking bolt comprises a first locking bolt, the locking nut comprises a first locking nut, and the first locking bolt is in threaded connection with the first locking nut;
the screw rod of the first locking bolt penetrates through the base plate, the underframe, the hoisting beam and the gasket, and the base plate, the underframe, the hoisting beam and the gasket are fastened between the screw head of the first locking bolt and the first locking nut.
9. The hoisting fastening device for the power battery as claimed in claim 7, wherein the hoisting member comprises a hoisting beam and a liner; one side surface of the hoisting beam is in contact with the lower surface of the underframe, the liner is connected with the hoisting beam, a first side surface of one part of the liner is in contact with the lower surface of the underframe, and a second side surface of one part of the liner is in contact with one end of the bush;
the locking bolt comprises a second locking bolt, the locking nut comprises a second locking nut, and the second locking bolt is in threaded connection with the second locking nut;
the screw rod of the second locking bolt penetrates through the base plate, the bottom frame, the gasket and the lining, and the base plate, the bottom frame, the gasket and the lining are fastened between the screw head of the second locking bolt and the second locking nut.
10. A rail vehicle, comprising an underframe and a power battery, and further comprising a hoisting fastening device of the power battery as claimed in any one of claims 1 to 9;
the underframe is connected with a hoisting member on the power battery through a hoisting fastening device of the power battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221891540.XU CN218371281U (en) | 2022-07-20 | 2022-07-20 | Power battery's hoist and mount fastener and rail vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221891540.XU CN218371281U (en) | 2022-07-20 | 2022-07-20 | Power battery's hoist and mount fastener and rail vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218371281U true CN218371281U (en) | 2023-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221891540.XU Active CN218371281U (en) | 2022-07-20 | 2022-07-20 | Power battery's hoist and mount fastener and rail vehicle |
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| Country | Link |
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| CN (1) | CN218371281U (en) |
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- 2022-07-20 CN CN202221891540.XU patent/CN218371281U/en active Active
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